vanish.so 15 likesA vanishing note service supporting aes-gcm 256, custom passwords via pbkdf2, and one-time pads.Cost / LicenseFreeOpen Source OriginUnited StatesPlatformsOnline+1Best alternatives are RetrieverandVailNote24 alternatives
Expires LikeDo not get into trouble due to expiration!.Cost / LicenseFreemiumProprietary PlatformsiPhoneiPad+8
showcert LikeSimple OpenSSL for humans: all you need for X.509 TLS certificates (and nothing more).Cost / LicenseFreeOpen Source (MIT)PlatformsLinux